| 声强选通分析技术在柴油机故障诊断中的应用与研究 |
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| 引用本文： | 孙忠良,王弘.声强选通分析技术在柴油机故障诊断中的应用与研究[J].西南交通大学学报,1993(2):81-86. |
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| 作者姓名： | 孙忠良 王弘 |
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| 作者单位： | 西南交通大学机械工程二系，西南交通大学机械工程二系 |
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| 摘 要： | 本文根据柴油机气缸盖的噪声与振动特性,论述了在缸盖上用声、振信号诊断喷、供油系统和配气机构故障的可行性;利用缸盖上的声强信号对290QN型柴油机的喷,供油系统和配气机构的几种典型故障进行了诊断,提出了相应的判别准则。本文将声强选通频谱分析技术引进柴油机故障诊断,对声强在机械故障诊断中的应用做了比较深入的探索。
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| 关 键 词： | 声强选通频谱 故障诊断 柴油机 |
Application and Study on Diagnosing the Diesel Fault by Sound Intensity Gated Analysis Technique |
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| Abstract: | The characteristics of noise and vibration signals on diesel cylinder coverare studied to diagnose the faults of valve train and injection equiqment.Some typical faults in such parts of a 290 QN diesel are diagnosed bysound intensity signals, especially by sound intensity spectrum gatedtechnique, and then a relevant criterion is proposed. This work is a newapplication of sound intensity signal to machinery diagnostics. |
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| Keywords: | sound intensity spectrum gated fault diagnosing valve train injection equipment |
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